Patents by Inventor Michael R. Nelson

Michael R. Nelson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20030057535
    Abstract: The techniques of the present invention are directed towards setting a photonic device into a groove of a substrate, which is then attached to the chip sub-assembly in a way that the resulting optoelectronic package has a low profile and the interconnects between the photonic device and the semiconductor chip are short. The technique involves partially etching a groove in a substrate to allow for positioning of a photonic device within the groove. The photonic device is connected to the chip sub-assembly through interconnects that extend through the thickness of the substrate. The photonic devices are placed on their sides so that the active facets are perpendicular to the main axis of the chip sub-assembly. In this configuration, the optical fibers can be positioned parallel to the CSA top surface, ensuring a low module profile in the process.
    Type: Application
    Filed: June 6, 2002
    Publication date: March 27, 2003
    Applicant: National Semiconductor Corporation
    Inventors: Luu Thanh Nguyen, Ken Pham, Peter Deane, William Paul Mazotti, Bruce Carlton Roberts, Hau Thanh Nguyen, John P. Briant, Roger Clarke, Michael R. Nelson, Janet E. Townsend
  • Publication number: 20030026556
    Abstract: Concepts for conveniently arranging devices for the transduction of signals to and from voltage and current domains to infrared radiation domains is described. Specifically, optoelectronic components and methods of making the same are described. In one aspect, the optoelectronic component includes a base substrate having a pair of angled (or substantially perpendicular) faces with electrical traces extending therebetween. A semiconductor chip assembly is mounted on the first face of the base substrate and a photonic device is mounted on the second face. Both the semiconductor chip assembly and the photonic device are electrically connected to traces on the base substrate. The semiconductor chip assembly is generally arranged to be electrically connected to external devices. The photonic devices are generally arranged to optically communicate with one or more optical fibers. The described structure may be used with a wide variety of photonic devices.
    Type: Application
    Filed: June 6, 2002
    Publication date: February 6, 2003
    Applicant: National Semiconductor Corporation
    Inventors: William Paul Mazotti, Peter Deane, Luu Thanh Nguyen, Ken Pham, Bruce Carlton Roberts, Jia Liu, Yongseon Koh, John P. Briant, Roger William Clarke, Michael R. Nelson, Christopher J. Smith, Janet E. Townsend
  • Patent number: 4692883
    Abstract: This invention is directed to a digital wavelength calibration system for a spectrophotometer, which includes a photodiode array that forms an output detector for the spectrophotometer, a light source for generating at least one reference emission line of known peak wavelength, a computer controlled mechanism for causing the peak of said reference line to fall in close proximity to the center of a preselected pixel of said photodiode array, peak location computing apparatus for computing the exact position data of the peak relative to the pixel center in terms of the pixel spacing and the ordinal number of the preselected pixel and for retaining this position data for subsequent wavelength computation, wavelength identification computing apparatus for computing the numerical relationship data of the ordinate number of each pixel to the wavelength falling on that pixel and for retaining this relationship data for subsequent correlation with data generated by the pixel, and apparatus for computational processin
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: September 8, 1987
    Assignee: The Perkin-Elmer Corporation
    Inventors: Michael R. Nelson, Roy E. Boostrom, Jerry E. Cahill, Tzong Hwang
  • Patent number: 4669880
    Abstract: Output data from a spectrophotometer may be presented as a series of data values representative of the intensity amplitude of pass bands having equal bandwidths (resolution) and spaced at wavelength intervals equal to the bandwidth. For some purposes it is desirable to increase the bandwidth of said data, and this invention discloses method and apparatus for converting such data to equivalent data having a selected greater bandwidth.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: June 2, 1987
    Assignee: The Perkin-Elmer Corporation
    Inventors: Michael R. Nelson, Jerry E. Cahill